2009 Suzuki Boulevard C109RT vs 2010 Triumph Rocket III Roadster

Full specifications comparison • 2 motorcycles

Comparing 2 motorcycles
2009 Suzuki Boulevard C109RT 2009 Suzuki Boulevard C109RT

Custom / cruiser

Engine
Four stroke, 54° V-Twin
Power
92 kW / 123 hp @ 6200 rpm
Top Speed
N/A
Weight
408 kg / 900 lbs
2010 Triumph Rocket III Roadster 2010 Triumph Rocket III Roadster

Custom / cruiser

Engine
Four stroke, longitudinal three cylinder, DOHC, 4 valves per cylinder.
Power
109 kW 146 hp @ 5750rpm
Top Speed
N/A
Weight
367 kg / 807 lbs
Full Specifications
General
Year2008-092010
Make ModelSuzuki Boulevard C109RTTriumph Rocket III Roadster
Dimensions
Seat Height705 mm / 27.7 in750 mm / 29.5 in
Wheelbase1755 mm / 68.3 in1695 mm / 66.7 in
Ground Clearance135 mm / 5.3 in-
Height-1165 mm / 45.8 in
Length2580 mm / 101.5 in2500 mm / 98.3 in
Width985 mm / 38.7 in970 mm / 38.2 in (Handlebars)
Weights & Capacities
Dry Weight-320 kg / 704 lbs
Fuel Capacity19 L / 5.0 US gal24 Litres / 6.3 US gal / 5.3 Imp gal
Wet Weight408 kg / 900 lbs367 kg / 807 lbs
Performance
Max Power92 kW / 123 hp @ 6200 rpm109 kW 146 hp @ 5750rpm
Max Torque160 Nm / 16.3 kgf-m / 118 lb.ft @ 3200 rpm221Nm / 22.5 kgf-m / 163 ft.lbs @ 2750rpm
Engine
Displacement1786 cc / 108.8 cu. in2294 cc / 140 cu in
Engine DetailFour stroke, 54° V-TwinFour stroke, longitudinal three cylinder, DOHC, 4 valves per cylinder.
Bore x Stroke112 x 90.5mm101.6 x 94.3 mm
Compression Ratio10.5:18.7:1
Cooling SystemLiquid cooledLiquid cooled
Fuel InductionEFI, 2 x 56 mm throttle bodiesMultipoint sequential electronic fuel injection
IgnitionElectronic ignition (Transistorised) Digital inductive type via electronic engine management
LubricationSemi-dry sump-
StarterElectricElectric
Drivetrain
ClutchWet multi-plate typeWet, multi-plate
Final DriveShaftShaft
Gear Ratios-1st: 41/14 / 2nd: 37/19 / 3rd: 33/23 / 4th: 29/25 / 5th: 27/28
Transmission / Drive5 Speed 5 Speed, constant mesh
Chassis
Frame Type-Tubular steel, twin spine
Suspension - FrontTelescopic, coil spring, oil dampedKayaba 43 mm upside down forks
Suspension - RearLink type, coil spring, oil damped, adjustable spring preloadKayaba black spring twin shocks with 5 position adjustable preload
Rake-32°
Trail-148 mm / 5.8 in
Wheel Travel - Front-120 mm / 4.7 in
Wheel Travel - Rear-105 mm / 4.1 in
Wheels & Brakes
Brakes - Front2 x 310 mm discs, 2 piston calipers2 x 320 mm Discs, 4 piston calipers
Brakes - RearSingle 274mm disc, 2 piston caliperSingle 316 mm disc, 2 piston caliper
Tyres - Front150/80R16150/80 V17
Tyres - Rear240/55R16250/50 V16
Wheels - Front-Alloy 5-spoke, 17 x 3.5in
Wheels - Rear-Alloy 5-spoke, 16 x 7.5in

Verdict

Winner on specs

2010 Triumph Rocket III Roadster

The 2010 Triumph Rocket III Roadster edges out the 2009 Suzuki Boulevard C109RT thanks to its more peak power, higher torque, lighter kerb weight, larger fuel tank and larger displacement. Specifications are one part of the picture - dealer support, parts availability, and intended use all matter too.

Key Differences

2009 Suzuki Boulevard C109RT - Advantages

  • Lower seat height: 705 mm vs 750 mm - accessible to a wider range of rider heights.

2010 Triumph Rocket III Roadster - Advantages

  • More power: Produces 109 kW 146 hp @ 5750rpm vs 92 kW - a meaningful performance advantage.
  • Higher torque: 221Nm vs 160 Nm - more pulling power across the rev range.
  • Lighter: 367 kg vs 408 kg - easier to handle and less fatiguing on long trips.
  • Larger fuel tank: More range between stops - an advantage on touring routes and remote roads.
  • Larger displacement: 2294 cc vs 1786 cc - more cubic capacity means broader torque delivery and greater low-end pull.

2009 Suzuki Boulevard C109RT vs 2010 Triumph Rocket III Roadster - FAQs

What are the engine differences between the 2009 Suzuki Boulevard C109RT and 2010 Triumph Rocket III Roadster?
The 2009 Suzuki Boulevard C109RT uses Four stroke, 54° V-Twin, while the 2010 Triumph Rocket III Roadster is powered by Four stroke, longitudinal three cylinder, DOHC, 4 valves per cylinder..
Which is lighter, the 2009 Suzuki Boulevard C109RT or the 2010 Triumph Rocket III Roadster?
The 2010 Triumph Rocket III Roadster is lighter at 367 kg compared to 408 kg for the 2009 Suzuki Boulevard C109RT - a difference of 41 kg. This is a meaningful difference that affects handling and rider fatigue.
Which has more power, the 2009 Suzuki Boulevard C109RT or the 2010 Triumph Rocket III Roadster?
The 2010 Triumph Rocket III Roadster produces more peak power at 109 kW 146 hp @ 5750rpm, compared to 92 kW for the 2009 Suzuki Boulevard C109RT.
Which bike is better for shorter riders, the 2009 Suzuki Boulevard C109RT or the 2010 Triumph Rocket III Roadster?
The 2009 Suzuki Boulevard C109RT has the lower seat at 705 mm, making it more accessible. The 2010 Triumph Rocket III Roadster sits higher at 750 mm. A seat height below 800 mm suits most riders; above 820 mm shorter riders may need to tiptoe.
Which has the larger fuel tank, the 2009 Suzuki Boulevard C109RT or the 2010 Triumph Rocket III Roadster?
The 2010 Triumph Rocket III Roadster has the larger tank at approximately 24 litres vs 19 litres for the 2009 Suzuki Boulevard C109RT. At 5-6 l/100 km that is roughly 400-480 km vs 316-380 km between stops.
Which should I buy, the 2009 Suzuki Boulevard C109RT or the 2010 Triumph Rocket III Roadster?
Both are strong choices. The 2009 Suzuki Boulevard C109RT has the edge in lower seat height, while the 2010 Triumph Rocket III Roadster stands out for more peak power and higher torque. Visit dealers, arrange test rides, and factor in local parts and service costs - these often matter as much as the spec sheet.